Claude Sonnet 4 vs Gemini 2.0 Flash

Performance benchmarks + pricing comparison — updated April 2026

Claude Sonnet 4

Anthropic

Anthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.

Input$3.00/M
Output$15.00/M
Context200K tokens
Best ForDay-to-day coding, code review, documentation
Benchmark78/100

Gemini 2.0 Flash

Google

Cheapest Google model. Fast responses for simple coding tasks.

Input$0.100/M
Output$0.400/M
Context1M tokens
Best ForSimple tasks, fast responses, cost optimization

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioClaude Sonnet 4Gemini 2.0 FlashSavings
Small Script (1K lines) $0.62 $0.02 Gemini 2.0 Flash saves $0.60 (97%)
Medium Feature (10K lines) $4.66 $0.12 Gemini 2.0 Flash saves $4.54 (98%)
Large Project (50K lines) $23.29 $0.58 Gemini 2.0 Flash saves $22.71 (98%)
Code Review (5K lines) $1.20 $0.03 Gemini 2.0 Flash saves $1.18 (98%)

Verdict

Gemini 2.0 Flash wins on both price and performance — $0.100/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models